Understand the basic refrigeration cycle, identify components in a refrigeration circuit, understand how each component works, diagnose refrigeration-circuit problems, use a manifold gauge set, pressure/temperature chart, and temperature-measuring devices for routine maintenance and troubleshooting, and understand refrigeration recovery, evacuation, and charging.
Understand basic electron theory, electricity flow, alternating and direct current, single- and three-phase circuits, and series and parallel circuits; read basic wiring diagrams; understand Ohm’s law; use multimeters to measure voltage, current, and resistance; and troubleshoot basic electrical circuits.
Understand air treatment to control temperature, humidity, and distribution, and read and understand mechanical drawings.
Understand the basic heating cycle, identify heating-system components, understand how each component works, and diagnose heating-system problems using a gas-pressure test and other devices for routine maintenance and troubleshooting.
Understand combustion theory and its relation to combustible fuels such as gas and oil.
Have general knowledge of safe working practices and Missouri Occupational Safety and Health Administration requirements.
Responsibilities
Perform repairs and maintenance on refrigeration, air-conditioning, electric-motor, heating, heat-pump, compressor, light-commercial-furnace, boiler, burner, intake- and exhaust-fan, economizer, and humidifier equipment.
Check in with the office for scheduled jobs after completing each job and at the end of each workday.
Complete all applicable company-provided forms during or at the end of each task.
Manage the time required for the jobs scheduled each day.
Check in with clients at the beginning and end of each task to keep them informed throughout the visit.
Obtain client signatures on company-provided forms where applicable.
Record the time spent at each job on the weekly timesheet upon completion of each task.
Submit paperwork, checks, or cash for processing at the end of each week.
Submit vendor packing slips or invoices for each job to the Warehouse Coordinator.
List all materials used for each task on the company-provided forms.
Respond to office pages and calls in a timely manner.
Check in as needed to keep the office dispatcher and/or field supervisor informed of status.
Secure the parts and tools needed for jobs throughout the day.
Report repairs to the estimator or field supervisor, provide information needed to quote repairs, and complete the required quote forms.
Consult the field supervisor or dispatcher when uncertain.
Communicate clearly and confidently with customers throughout service visits so they understand what is happening in their home or business.
Adjust communications to provide an appropriate customer experience.
Create detailed job notes in customer accounts for future reference.
Share thoughts and experiences with coworkers in meetings and one-to-one interactions, and learn from coworkers.
Recommend process improvements to the manager to improve efficiency and effectiveness.
Maintain a clean, organized workspace in customer properties and the company vehicle.
Work safely and help ensure coworkers work safely.
Educate consumers and existing clients about the company and its products to obtain sales for commercial and residential HVAC projects and products.
HVAC Service Technician
Hoffmann Brothers · St. Louis, United States · Full-time · Posted 2025-12-29
Salary: USD 52,000–110,000
Workplace: on_site
Department: HVAC
Description
For over 40 years, Hoffmann Brothers has served as the premier HVAC, Plumbing, Electrical, and Appliance Repair service and installation contractor in the St Louis area. With an aggressive expansion campaign, we are now growing at an exciting rate facing new challenges as we transform our business and enter new geographic and service markets, like Nashville, TN.
As an HVAC Service Technician in St. Louis, MO, you will educate consumers and existing clients about our company and our products in a manner that leaves a favorable impression, thereby obtaining sales for HVAC projects and products both commercially and residentially directly to the end user.
Summary:
Primarily responsible for performing repairs and maintenance to a variety of equipment including refrigeration, air conditioning, electric motors, heating units, heat pumps, compressors, light commercial furnaces, boilers, burners, intake and exhaust fans, economizers, and humidifiers.
Essential Job Duties and Responsibilities:
Check in with office for scheduled jobs after the completion of each job and at the end of each workday.
During and or at the end of each task fully complete all company provided forms possible.
Responsible for time management of jobs scheduled each day.
Check in with client at the beginning and end of each task to make sure they are aware of everything going on throughout the entire visit.
Obtain client signature on company provided forms where applicable.
Upon completion of each task record time spent at each job on the weekly time sheet.
Hand in paperwork, checks, or cash at the end of each week for processing.
Ensure all vendor packing slips or invoices for each job are handed into the Warehouse Coordinator.
Ensure all materials used for each task are listed properly on the company provided forms.
Answer all office pages/calls in a timely manner.
Check in as needed to ensure office dispatcher and/or field supervisor are aware of your status.
Secure parts and tools needed throughout the day for various jobs as required.
Call in repairs to the estimator or field supervisor and provide the necessary info needed to quote the repair and fill out the appropriate quote forms as required.
Consult field supervisor or dispatcher in times of uncertainty.
Ability to communicate with customers in a clear, confident manner throughout the entire service so that they are aware what is going on inside their home/business.
Ability to adjust your communications to provide the best customer experience possible.
Ability to create detailed job notes in the customer’s account for future reference.
Ability to both teach and learn by sharing thoughts/experiences with your coworkers in meetings and in one-to-one interaction.
Willingness to try new ideas and recommend process improvements to your manager with the objective of improving efficiency/effectiveness.
The ability to maintain a clean and organized workspace both in a customer’s property and your company vehicle.
The ability to work safely and the motivation to help ensure that those you work with are working in a safe manner.
Requirements
Qualifications:
Candidate must have a minimum of 3 years of experience.
Understands basic refrigeration cycle to include identifying components in refrigeration circuit, understanding how each component works, diagnosing problems in the refrigeration circuit, using manifold gauge set, pressure/temperature chart and temperature measuring devices for routine maintenance and to troubleshoot. Understands refrigeration recovery, evacuation, and charging.
Understands basic electron theory, how electricity travels, AC and DC currents, single phase and three phase circuits, and series and parallel circuits. Ability to read basic wiring diagrams. Understanding of Ohms Law. Ability to use multi-meters to read voltage, current and resistance values. Must be able to troubleshoot basic electrical circuits.
Understands the process of treating air to simultaneously control its temperature, humidity, and distribution. Must be able to read and understand mechanical drawings.
Understands basic heating cycle to include identifying components in heating system, understanding how each component works, diagnosing problems in the heating system using a gas pressure test and other devices for routine maintenance and to troubleshoot.
Understands the theory of combustion and how it relates to combustible fuels such as gas and oil.
Safety:
Must consider safety one’s primary job, both for personal, co‑worker and public benefit, and must have general knowledge of safe working practices and of MO‑OSHA requirements.
Benefits
Competitive Hourly Compensation
Company Provided Truck/Van
Company Provided Power Tools
10% 401K Match
Free Health, Dental, and Vision insurance for the employee, dependents, and spouse